Inter Coolers
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13

To Fit:
Porsche 911 997.1 Turbo 2007-2009 and GT2RS models
Porsche 911 997.2 GT2 RS model 2010 to 2012
Porsche 911 997.2 Turbo 2010 to 2012
A true performance upgrade intercooler kit for the 997.1 Turbo and GT2. This well thought out refined kit allows fitment of the larger later type 997.2 intercoolers onto the 997.1 model, and includes all the components and hardware necessary for a serious upgrade!
Significant advantages with Do88's Porsche Performance Intercooler Kit:
• Cooler air to your engine!
• High quality, high density UK made motorsport cores.
• 3D freeform designed cast end tanks.
• Custom designed carbon fibre ambient air guides.
• Comes with high quality silicone hoses and accessories for installation.
• See enlarged images for more information!
Do88: After our market research in the beginning of our intercooler development for the 997 generation 2 we understood that not many of the upgrade products on the market are really upgrades but more at the same level as the 997.2 standard intercoolers or sometimes even lower. For this reason we realised from the beginning we could not sacrifice anything to keep the cost down, we just had to do the best possible in the space available in the car!
First of all we carried out a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which has great cooling efficiency as well as being light weight. With a great core in place we started to refine the end tank design which brought us to a decision to make cast end tanks as we could then control the air flow distribution over the core in a very precise way. This is very important as a good tank design will be beneficial for both pressure drop and cooling efficiency.
To be able to fit an intercooler with appropriate thickness for the job it was also necessary to design a new upper ambient air guide. This was designed in our 3D scanned environment from carbon fibre to ensure perfect fit to the vehicle integrated air guides and our intercooler. To achieve the best air flow distribution over the core we made intercooler end tanks with 70 mm (2 3/4 inch) connections which then made it necessary to designed custom silicone hoses for all positions.
The hoses are 3D designed with airflow in mind where we CFD tested each hose during development to ensure best possible flow rate of all parts! The hoses between turbocharger and intercooler are special silicone hoses that can withstand up to 240°C (464°F) continuous temperature! Another important aspect for cooling performance is to maximise all ambient cooling air available, to optimise this part we include air block rubber seals for all surfaces where the ambient air guides must seal properly.
With the way we have chosen to build our intercoolers the weight increase compared to the OEM ones is relatively small considering the size of our intercooler and that it's completely made of aluminium. Our intercooler weight is 5,85 kg (12,89 lb) per piece and the 997.2 OEM intercooler weights 3,30 kg (7,27 lb) per piece. It might sound like a big weight increase but not when you compare it to similar core sized intercoolers on the market!
Included in this kit:
• Performance intercoolers
• Carbon fibre air guides
• Silicone hoses
• Hose clamps
• Rubber seals
• Installation hardware
When it comes to performance our intercooler kit gives a great reduction of the intake temperature compared to the OEM 997.2 intercoolers! See enlarged diagrams where we show data from our AIM racelogger recorded at 5 full throttle accelerations done in an immediate sequence without any cool down between 40-260 km/h (25-162 mph) in a Stage 1 tuned Porsche 997.2 Turbo PDK. In all tests the car was driven in Sport Plus, automatic gear change and AC off. First we made 5 runs with the car equipped with OEM intercooler and y-pipe then we switched to do88 performance intercoolers and y-pipe and drove car for a while, then we made 5 runs exactly the same as with the OEM parts. The temperatures are significant lower with our intercoolers which is visible in the graph!
As well as lower intake temperature our big pack also flows better than the 997.2 original intercoolers! See enlarged image showing the air flow rates at different pressure drops in the graph where we compared our big pack to the original intercooler and Y-pipe in our own Superflow SF-1020 Probench to verify the final result!
From our five in a row full throttle accelerations between 40-260 km/h (25-162 mph) we have very accurate and consistent test data for the range 50-250 km/h (31-155 mph). When analyzing the numbers, we found that in average we cut down the acceleration time for 50-250 km/h (31-155 mph) by 3 seconds compared to the OEM intercooler and y-pipe! No software programming or adaption reset was done in between the tests.
Please select which Y-Pipe you intend to install this intercooler kit with from the options.
Porsche Inter Coolers
At Design911, we supply a wide range of inter coolers for Porsche models, helping you maintain, personalise and enjoy your car.
Why do Porsche Inter Coolers matter?
Inter Coolers affect how efficiently the engine in your Porsche runs, especially on turbocharged models. Over time they can suffer from leaks, corrosion and reduced efficiency, or simply no longer be suitable once you start tuning the engine. Replacing tired or undersized intercoolers helps your Porsche stay reliable, consistent and enjoyable to drive, particularly under heavy load.
- Keep your Porsche looking smart rather than tired or neglected
- Help protect the surrounding area from dirt and corrosion where relevant
- Reduce minor niggles such as looseness, rattles or mismatched parts
- Support long-term enjoyment, pride of ownership and potential resale value
Common options & kits
Individual replacement parts
Specific items to address a particular area or issue without changing everything at once.
- Ideal for targeted repairs
- Lets you replace only what is needed
- Helps keep initial costs under control
Matched sets or pairs
Components supplied together so both sides or related items are renewed at the same time.
- Consistent feel and performance
- Helps avoid uneven wear or behaviour
- A sensible choice for routine maintenance
Complete kits
Grouped parts designed to refresh a whole system or area in one go, useful for upgrades and restorations.
- Everything specified in a single package
- Saves time compared with sourcing parts individually
- Ideal when upgrading or restoring your Porsche
Brands & quality options
At Design911, we stock genuine Porsche parts where available, plus OEM-equivalent and carefully selected aftermarket brands. This lets you choose between keeping things original, adding subtle upgrades, or managing budgets on everyday maintenance.
Agency Power
Agency Power produces a range of functional racing and performance products, including parts for Porsche models. Components are developed through track use and product testing to help ensure fitment and consistency.
Alpha
Alpha Performance, part of AMS, engineers intercooler systems and related components with a focus on efficient cooling and durability. Their Porsche products are developed using computer-aided design and motorsport experience to optimise fitment and airflow.
BBi Autosport
BBi Autosport is a Porsche-focused motorsport and tuning company with decades of combined racing experience. Their performance parts are developed from track programmes and professional racing, with attention to fit, function and workshop use.
CSF
CSF designs and manufactures high‑performance Porsche cooling products for motorsport and enthusiast use. Their intercoolers and radiators focus on efficient heat rejection, robust construction and reliable fitment.
Denso
Always check the exact part number and fitment data when choosing Denso components to ensure the correct match for your specific Porsche model and engine.
When should you review or replace your Porsche inter coolers?
Checking inter coolers regularly helps you spot wear, damage or age-related deterioration before it affects comfort, refinement or leads to more expensive repairs later on.
- Existing parts are worn, cracked, scuffed, faded, corroded or missing
- You notice looseness, vibration or an untidy appearance around the area they sit in
- You have had related work carried out and want everything to look and feel consistent
- You want the car to feel smarter and better cared for in daily use or before resale
If any of these apply, it is a good time to review your inter coolers and replace anything that is past its best, so your Porsche stays dependable and enjoyable to drive.
Explore Porsche inter coolers with Design911
Browse inter coolers for Porsche at Design911 — from individual parts to complete kits — and find options to suit everyday maintenance, upgrades and full projects.